$272.35

Conductivity Standard, 200,000 µS/cm (200 mS/cm) at 25°C - 2249.20-1

$90.57

Conductivity Standard, 500,000 µS/cm (500 mS/cm) at 25°C - 2249.50-16

$41.41

Conductivity Standard, 250 µS/cm at 25°C - 2236.60-16

$91.43

Conductivity Standard, 25,000 µS/cm (25 mS/cm) at 25°C, 500ml - 2247.25-16

$131.17

Conductivity Standard, 199,900 µS/cm (199.9 mS/cm) at 25°C - 2249.19-16

$48.19

Conductivity Standard, 20 µS/cm at 25°C - 2236.04-16

$133.86

Conductivity Standard, 300 µS/cm at 25°C - 2239-16